The first alarm clock could only ring at 4 a.m.
120
Kleenex tissues were originally used as filters in gas masks.
46
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Castor oil is used as a lubricant in jet planes.
-5
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
There are only 14 blimps in the world.
69
